Tinnevelly's climate is characterized by rising temperatures throughout the year, with a gradual increase in mercury levels from January to April. Peak temperatures are reached between May and August, where day temperatures often soar above 36°C, while night temperatures remain relatively cool around 26-27°C. A slight dip in temperature is observed in September before temperatures rise again, gradually decreasing towards November. The winter months of December and January bring temperatures back down to around 24-25°C, setting the stage for another warm year ahead. Overall, Tinnevelly's climate is warm to hot throughout the year, with temperatures rarely dropping below 23°C or rising above 36°C.